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143450452 = 2250970457
BaseRepresentation
bin10001000110011…
…10000101010100
3100222221001000201
420203032011110
5243210403302
622122350244
73361210615
oct1043160524
9328831021
10143450452
1173a794a2
124005b384
1323947a32
14150a1c0c
15c8d8c87
hex88ce154

143450452 has 12 divisors (see below), whose sum is σ = 251535060. Its totient is φ = 71583296.

The previous prime is 143450413. The next prime is 143450497. The reversal of 143450452 is 254054341.

It can be written as a sum of positive squares in 2 ways, for example, as 46703556 + 96746896 = 6834^2 + 9836^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 143450452.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33193 + ... + 37264.

It is an arithmetic number, because the mean of its divisors is an integer number (20961255).

Almost surely, 2143450452 is an apocalyptic number.

It is an amenable number.

143450452 is a deficient number, since it is larger than the sum of its proper divisors (108084608).

143450452 is a wasteful number, since it uses less digits than its factorization.

143450452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70970 (or 70968 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 143450452 is about 11977.0802785988. The cubic root of 143450452 is about 523.4806588434.

The spelling of 143450452 in words is "one hundred forty-three million, four hundred fifty thousand, four hundred fifty-two".

Divisors: 1 2 4 509 1018 2036 70457 140914 281828 35862613 71725226 143450452